<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
    <meta name="description" content="">
    <meta name="author" content="">
    <title></title>
    <!-- Bootstrap core CSS -->
    <link th:href="@{/webjars/bootstrap/4.5.3/css/bootstrap.min.css}" rel="stylesheet"/>
    <!-- Custom styles for this template -->
    <link th:href="@{/asserts/css/signin.css}" rel="stylesheet">
    <link rel="shortcut icon" href="#"/>
</head>

<body class="text-center">
index页面 ~.~
<label class="col-sm-1 control-label">用户名：</label>
<input id="username" type="hidden" th:value="${user.name}"/>

<input id="account" type="text" th:value="${user.account}"/>

</body>

</html>